Electric signaling system



Nov; g2, E948.

Filed Jan. 8, 1945 E. M. S. MCWHIRTER ETAL -ELECTRIC SIGNALING SYSTEM 24 heats-sheet 1 Nov. 2, 1948. v

E. M. s. MCWHIRTER Erm.V 25452,-,590

l`ELEGTRIC SIGNALING' SYSTEM' Filed Jan. 8, 1945 24 sheets-sheet 2 IN V EN TORS ELECTRIC SIGALING SYSTEM l 24 Sheets-Sheet 5 Filed Jan. 8, 1945 :i644 1---(4@ ---C42 Iliff.

ATTORNEY f NOV 29 1948 E. M. s. MCWHIRTER ErAL 2,452,590

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ELECTRIC 'SIGNA'LING SYSTEM Filed Jan.Y 8. 1945 24 Sheets-Sheet 5 -RUS Nov. 2, 1948.

ELECTRIC S IGNALING SYSTEM Filed Jan. a, 1945 24 Sheets-Sheet 6 w, .mi

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ELECTRIC S IGNALING SYS TEM Filed Jan. 8. 1945 24 Sheets-Sheet 8 v` *.lu

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ELECTRIC SIGNALING SYSTEM Filed Jan. 8, 1945 24 Sheets-Sheet 9 THTHTHRRP.

IN V EN TORS NV- 2, l948 E. M. s. McwHlRTER yr-:rAL- 2,452,590

ELECTRIC SIGNALING SYSTEM Filed Jan. 8, 1945 24 sheets-sheet 1o E UV xox/ ATTOPA/' 1 I Nov. 2, 1948. E. M. s. MCWHIRTER. Erm.y 2,452,590

ELECTRIC SIGNALING lSYSTEM Filed Jan. 8, 1945 24 sheets-sheet 11 A T TOIPE'Y Filed Jan. 8, 1945 Nov. 2, 1948. EM. s. MCWHIRTER ETAL,

ELECTRIC S IGNALING SYSTEM 24 Sheets-Sheet l2 INVENToRs f/P/C Aff/maw suf/f7 Mew/Riff? Nov. 2, 1948.l E. M. s. lwiowl-IIRTER ETAL 2,452,590

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ELECTRIC SIGNALING SYSTEM Filed Jan. 8, 1945 24 Sheets-511661; l5

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ELECTRIC SIGNALING SYSTEM FledJan. 8, 1945 24 Sheets-Sheet 16 INVENToRs f/wc maca/W Juf/fr wmf/wmf Nov. 2, 1948. E. M. s'. McwHlR-ER ErAL 2,452,590

ELECTRIC SIGNALING SYSTEM Filed Jan. V8, 1945 24 sheets-sheet 17 I I I Yl I I -I I I I I I I I I suA2 SUA3

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ELECTRIC SIGNLING SYSTEM Fiied Jan. 8. 1945 24 Sheets-Sheet 19 ELECTRIC SIGNLING SYSTEM 24 Sheets-Sheet 2O Filed Jan. 8, 1945 ONE 0%. w|||| uIll- Su TTP/V 

